3DMark 11

3DMark 11 is the latest version of the world's most popular benchmark. Designed to measure your PC's gaming performance 3DMark 11 makes extensive use of all the new features in DirectX 11 including tessellation, compute shaders and multi-threading. Trusted by gamers worldwide to give accurate and unbiased results, 3DMark 11 is the best way to consistently and reliably test DirectX 11 under game-like loads.

HD 6870 - Here we see no real change.

HD 6970 - Here we see no real change.

HD 7970 - In both presets we can see a slight bump in performance. Nothing too major, though.